Sherlock Holmes and John Watson return in three of their most exciting adventures: A Scandal in Belgravia, The Hounds of Baskerville, and The Reichenbach Fall.

Becoming embroiled in the complex plans of the dangerous and desirable Ire­ne Adler, Sherlock needs every one of his remarkable skills to survive and an invitation to the wilds of Dartmoor brings our terrified heroes face to face with the supernatural. Meanwhile, Moriarty, still out there in the shadows, is determined to bring Sherlock down – whatever the cost. Co-created by Mark Gatiss & Steven Moffat. Based on the stories by Sir Arthur Conan Doyle. Written by Mark Gatiss, Steven Moffat and Steve Thompson Produced by Sue Vertue & Elaine Cameron. Executive Producers: Sue Vertue, Beryl Vertue, Steven Moffat, Mark Gatiss, Bethan Jones, Rebecca Eaton Directed by Paul McGuigan & Toby Haynes